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Level: Beginner
Length: 15 mi (24.1 km)
Surface: Singletrack
Configuration: Network
Elevation: +338/ -306 ft
Total: 94 riders

Mountain Biking Lake Sawyer

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#19 of 1,207 mountain bike trails in Washington
#1,205 in the world

This is another web of trails. There are some ladder bridges, drops and other freeride obstacles and plenty of tight and twisty singletrack. No long hard climbs but there are a few steep climbs just as you come around a sharp corners covered in roots.

First added by Josh_Kilpatrick on Dec 17, 2008. Last updated May 7, 2020. → add an update
Before you go
  • Drinking water: unknown
  • Lift service: unknown
  • Night riding: yes
  • Pump track: unknown
  • Restrooms: unknown
  • Fat bike grooming: unknown
  • E-bikes allowed: unknown
  • Fee required: unknown
This trail information is user-generated. Help improve this information by suggesting a correction.
Getting there
From Renton take HWY 169 (The Maple Vallye Highway) East towards Black Diamond. After passing through Four Corners look for some power lines. Pass under thoses and then start looking for pull outs to the right. There are several options. You can also turn right onto 288th and park in the small area directly to the left.
System trails (4)
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Lake Sawyer Trail map

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Local Info

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Trail checkins

Scott Petty (on Mar 22, 2020)
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Trail conditions

Dry (on Aug 27, 2020)
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Mountain Bike Trails Near Black Diamond, Washington

Beginner | 10 mi
| 1 mi
Intermediate | 8 mi
| 1 mi

Rider questions

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  • snoltz

    BDOS is lots of fun. Very well maintained but not as well as Swan Creek.

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  • lgmagone

    Great little set of mountain bike trails

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  • PacNWMTB

    An eclectic mix of trails offer variety, challenge and fun during all months of the year. If you're looking for long climbs or descents, this isn't the trail network for you. There's a lot more energy going into maintaining the trails and bridges.

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  • Josh L

    I wasn't overall impressed with these trails. I think everything was very hit and miss. If you live in the area would be great to ride all of the time but not worth more than an hour drive.

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  • MotsoFXT

    First time here. Was looking for a easy place to teach my wife and her her interested with mountain biking. This place was an easy ride for skilled bikers, very little elevation gain, lots of trails but this time of year a few trails were over grown and not well groomed. Seems to be a few spots people tend to stay on such as once upon a time, bad wolf, lil red, viper etc... in that General location. Though an easy park I had a lot of fun. Would come back again. Great place for beginners.

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  • sunfleurt

    So fun, lots to explore, varying difficulties between easy and intermediate depending on what trail you go on, and very quiet.

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  • AMO317

    Rode Black Diamond this weekend! It is a very well taken care of trail network. I was able to ride for just over and hour in the rain and it was great! The trails have plenty of cool bridges/obsticales, just enough to keep you on your toes. The trails have minimal climbs but flow really well. Highly recommended for a post work ride.

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  • Christopher Natoli

    Easy to access. Super fun to ride. Didn't see any bears out there. The trails are kept up by a lbs and its just fun. Reminds me of why I love riding.

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  • Permagrin

    Rode this area in July 2008 and what a blast. Trails had a little bit of everything; single track galore, green, rocks, drops, ruts, play ground with teeter totters and bridges...I could ride there all day. Would definitely revisit if I ever get back to WA.

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  • the_hite

    So I second the bear warning. Took my first ride out at Sawyer yesterday, so many trails! at one part a big black bear popped it's head out while I was putting my chain back on the ring. He just stared at us and walked away but man. Perfect timing right?

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  • mountbiker

    Great trail. Make sure you take a pepper spray with you 'cause sometimes u can see a black bear there. Don't ride alone too. I saw one, really.

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  • berd14

    not a bad trail. has many different levels of difficulty. there a few fun bridges and such. a delegated black diamond area. could spend all day or just after work there. there's a left hand turn you can make right after the elementary school to park. I used that trail head.there are others of course.

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